Search a number
-
+
272407143 = 390802381
BaseRepresentation
bin10000001111001…
…001101001100111
3200222120201100110
4100033021221213
51024214012033
643010344103
76515264631
oct2017115147
9628521313
10272407143
1112a848578
127728b033
1344589678
142826da51
1518dad363
hex103c9a67

272407143 has 4 divisors (see below), whose sum is σ = 363209528. Its totient is φ = 181604760.

The previous prime is 272407141. The next prime is 272407169. The reversal of 272407143 is 341704272.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 272407143 - 21 = 272407141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272407143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272407141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45401188 + ... + 45401193.

It is an arithmetic number, because the mean of its divisors is an integer number (90802382).

Almost surely, 2272407143 is an apocalyptic number.

272407143 is a deficient number, since it is larger than the sum of its proper divisors (90802385).

272407143 is an equidigital number, since it uses as much as digits as its factorization.

272407143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90802384.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 272407143 is about 16504.7612221444. The cubic root of 272407143 is about 648.2454797915.

The spelling of 272407143 in words is "two hundred seventy-two million, four hundred seven thousand, one hundred forty-three".

Divisors: 1 3 90802381 272407143